A hotspot of endemism: Oreophytic Taraxacum species (Compositae, Crepidinae) in the mountains of Bulgaria Author Štěpánek, Jan 0000-0003-4038-1998 Institute of Botany of the Czech Academy of Sciences, CZ- 25243 Průhonice 1, Czech Republic. & jan. stepanek @ ibot. cas. cz; https: // orcid. org / 0000 - 0003 - 4038 - 1998 jan.stepanek@ibot.cas.cz Author Kirschner, Jan 0000-0002-6303-713X Institute of Botany of the Czech Academy of Sciences, CZ- 25243 Průhonice 1, Czech Republic. & jan. kirschner @ ibot. cas. cz; https: // orcid. org / 0000 - 0002 - 6303 - 713 X jan.kirschner@ibot.cas.cz text Phytotaxa 2022 2022-10-20 569 1 1 139 http://dx.doi.org/10.11646/phytotaxa.569.1.1 journal article 172051 10.11646/phytotaxa.569.1.1 f8f7b3a8-119f-438c-95d6-5d701a007727 1179-3163 7235182 Taraxacum fontanosquameum van Soest (1959: 110) Type:— L , no. det. 19642, holotype (herb. van Soest 19359) ! Doll (1978: 642–643) :—“Von uns mehrfach bei der Musalla-Hütte in ca. 2500 m Höhe in grasigen Weiden gesammelt“. Herbarium voucher specimens:—In the Bulgarian collection in JE , there is a single rich gathering under the name of T. fontanosquameum , divided in two herbarium sheets, labelled: Flora von Bulgarien , Rila-Gebirge, Musalla-Hütte, Weg. 12 Jul [19]76, R . Doll [as Taraxacum fontanosquameum ] ( JE , no. det. 19263). Sheet I contains three plants in flower (pollen present, irregular). Sheet II bears two plants in flower and with unripe achenes (again, pollen present, irregular). The material became brown but seems to be homogeneous taxonomically. Interpretation:— Taraxacum fontanosquameum differs substantially in the leaf shape from the Bulgarian plants, and we cannot accept the Bulgarian material as a representative of this taxon.